I can now report that the mathematics of the multiple focus are a most improbable thicket, and the useful service I enforced upon what I must call an… - Jack Vance

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I can now report that the mathematics of the multiple focus are a most improbable thicket, and the useful service I enforced upon what I must call an absurd set of contradictions is one of my secrets. I know that thousands of scientists, at home and abroad, are attempting to duplicate my work; they are welcome to the effort. None will succeed. Why do I speak so positively? That is my other secret.